Yes, but the vast majority of boys aren’t holding out for that. They simply want to be able to learn and pay their bills. You’re propagating a nasty and mostly untrue stereotype.
In this society, paying tuition (even in Lakewood) costs more than two leased cars and a house. So are you saying they want even more money???
Even rent, food, etc. (excluding tuition) costs more than what an OT/PT/Speech or a teacher makes. I think you are overly optimistic regarding the earning power of a typical Bais Yaakov graduate.